NPPES file of Aug 9, 2026

Lillian Marie Toshner, FNP-C

Family Nurse Practitioner · Sussex, WI

Lillian Marie Toshner, FNP-C is a family nurse practitioner with a practice address in Sussex, Wisconsin, and NPI 1821935545, issued on Apr 30, 2026. Check the license (Wisconsin 1834333, as entered in NPPES) with the Wisconsin board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1821935545
Name
Lillian Marie Toshner
Credential
FNP-C
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
1834333 WI
Self-reported in NPPES; status is on the state search
Practice location
N57W24950 N Corporate Cir, Sussex, WI 53089
Phone
(262) 820-3093
Enumerated
Apr 30, 2026
Record last updated
Apr 30, 2026
Medicare enrollment
Enrolled (PECOS I20260609000544); may accept Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest family nurse practitioner records → All 2,814 in Wisconsin → Look up another NPI →

Also registered at N57W24950 N Corporate Cir

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Arthy Baskaran, MDFamily Medicine Physician1811302375
  2. Elizabeth Brownell, M.D.Family Medicine Physician1447223243
  3. Kevin Ciriacks, M.D.Dermatology Physician1740675099
  4. Arthur Crisostomo, M.D.Pulmonary Disease Physician1609849140
  5. Betty Holloway, RDNutritionist1750657128
  6. Julie Larsen, M.D.Family Medicine Physician1174596787

Verify Lillian Marie Toshner in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
    Search for license 1834333    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Wisconsin license search

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Lillian Marie Toshner among 2,814 family nurse practitioner records in Wisconsin

Lillian Marie Toshner, FNP-C is one of 2,814 family nurse practitioner records with a practice address in Wisconsin. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2026, is newer than 96% of them.

  • NPI issued2026 · 96% of these records are older, 0% newer
  • In a Medicare fileNo · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2026 · median 2019 among the 1,740 with a school on file
  • Record last updated2026 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

16 family nurse practitioner records list a practice address in Sussex

They are 16 of the 188 NPPES records with a practice address in Sussex, and 2,814 family nurse practitioner records in Wisconsin. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 2,814 in Wisconsin → Every provider in Sussex → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Leah Blakeman, APNPSussex, WI 530891518439033
  2. Andrea Cantwell-Durand, RNC, APNPSussex, WI 530891396921375
  3. Hilary Hetzel, APNPSussex, WI 530891992350870
  4. Marina Horschak, FNPSussex, WI 530891134548274
  5. Jennifer Ouweneel, D.N.P.Sussex, WI 530891689127086
  6. Joanne Peterson, NPSussex, WI 530891255335030
  7. Rebecca Rettler, APNPSussex, WI 530891699498535
  8. Michele Rocke, FNPSussex, WI 530891609316728

Common questions

What is Lillian Marie Toshner, FNP-C's NPI number?

Lillian Marie Toshner, FNP-C's National Provider Identifier (NPI) is 1821935545, issued on Apr 30, 2026. An NPI identifies a provider in billing; it is not a license.

Where is Lillian Marie Toshner, FNP-C located?

The NPPES record lists a practice address at N57W24950 N Corporate Cir, Sussex, WI, 53089. Phone: (262) 820-3093. Providers update this record themselves, so call before visiting.

How can I verify Lillian Marie Toshner, FNP-C's license?

NPPES lists Wisconsin license number 1834333, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.